Improvement in organ-bellows



tlnited tant 'latent 69Min.

JOSEPH R. PERRY, 0F WILKESl-SARRE, PENNSYLTANIA.

Letters Patent No. 106,275, dated August 9,1870.

IMPROVEMENT IN ORGAN-BELLOWS.

The Schedule referred to in these Letters Patent and makmg part of the same '1, JOSEPH R. PERRY, of Wilkesbarre, in the county of Luzerne and State ot' Pennsylvania, have invented a new and useful Improvement in Organ-Bellows, of which the tbllowing is a specification.

Ihis invention consists in a new method of constructing valve-chambers, for receiving and discharging the air from the bellows of reed organs, or other wind instruments, by means of suspended air-valves or cla-ppers, and attaching the said air-chambers to the vibrating boards, thus avoidingthe necessity as well as the expense of forming the exhaust-valves on the exhaust-boards, or other parts ot the bellows; and

It consists mainly in forming a receiving and discharging valve wit-hin the same chamber, which makes a double-acting chamber cf it, at the same time that it forms a material part ot' the vibi'at-ingboard itself'. if desiring. to so construct it, or it may be formed in the reed-chamber, if desirable, by cont-inning the same chamber up into said reed-chamber, as willv be set forth.

Figures 1, 2, and 3 are end views, which embody my invention.

In fig. 1 the reed-chamber is shown by A, and the upper board'of the bellows by the letter B, to which is attached the vibrating or middle board M, composed and formed in part by thc valvechamberD,

p and forming what I term a recessed vibrating board,

owing to the fact that, from the inside wall N ot'said chamber D, a recess is formed (as is shown by the dotted line running from the corner of valve-chamber at E) to F, so that when the end ofthe vibrating board is drawn up to board B by exhausting the air faster than it can be supplied to the receiving-chamber c from the reeds, it will t'oim an angle or recess ot' unexhau'sted air (which cannot be pumped out ot' the said receiving-chamber) equal to the space lett behind the said valve-chamber, and formed by the line E F, as shown, which air acts very favorably ia prevent-ing the reeds from being thrown out ot' tune inrapid playing.

rIhe suspended valve-chamber D is formed with two walls, one on the inside, N, and the other on the outside ot the receiving-chambei' c. Through these walls openings are made, to let the air pass when drawn upon by the exhaust-bomds G, the outside wall having openings formed in the saine way, and a leather. clapper attached to both valves, as seen at if lf- The air, -when drawn upon, will be caused to pass down through the vibrating board M into the exhaust-chamber, filling it from the chamber c through valve-clapper k', andwhen the spring reacts upon the board, by removing the pressure ot' the foot from the loot-.board, (not shown,) it will expel the same air back again through the outside openings, indicated by the dotted lilies at H, and as shown by the arrow heads,

thus forming a receiving and dischargiiig-chamber at the same time.

The top of said chamber, as shown by iig. 1, is hinged to the board B or the reed-board, from which point it vibrates, and on the end of the valve-chainber D is attached the tiame I rigidly, so that, as the air changes the position of the vibrating board by exhaustion, the spring acting on the exhaifist-board may at all times be in a proper' position to act uniformly.

The clappcrs k le are acted upon at the same instant, by being placed on similar sides of the two walls, the saine action, by pressure on the one clap-k per, opens the other, and, when the air is thrown back, it acts to close the one from which it was drawn, and opens the other alternately.

Fig. 2 is a variety of tig. 1. in which the reedchamber A is partitioned of? by a. thin hoard, Ti. which forms a top to valve-chamber D', and the air is operated in the saine manner as by the other described method.

When the exhaust-board G is drawn down, it causes the air to raise the clapper u within the chamber D', and when the spring is allowed to force it back, it operates to close n and opens k, as shown by the arrow-heads.

'lhe additional board O is formed to unite the exhaust-boards G to board B, in order to allow the same, in swinging, to overcome the various positions of the vibratingr board, as indicated by the dotted lines on the drawing.

In tig. 3 there is another variety of' tig. l', in which the vibrating board is hinged to boardB,a11d the walls ot' the valve-chamber D are attached pcrma` nently to board B, and also to a board below, which may either vibrate or be stationary.

lo this board are attached exhaust-boards, as above, and having the inside and outside valves the same as in iig. 1. lhe air is operated as before mentioned, and as shown by the arrow-heads.

In figs. 2 and 3 I have n ot shown the reacting springs, as in tig. 1.

Like letters in each figure correspond lto similar parts. f

-Having thus fully described my invention,

What I claim as new, and desire to secure by Letters Patent, is-

I. rlhe chamber D, lig. 1, formedwith the 0pening for receiving air from the chamber c, and passing the same into the space formed by drawing on the exhaust G, and provided with the opening H, for expelling` the air externally, substantially as described.

2. The valve-chambers in figs. 2 and 3, as varieties of the same, shown in lig. 1.

JOSEPH R. PERRY,

Witnesses:

E. B. Hanvnv, GEO. UALLINGS. 

